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Table 1 Range, mean and standard deviation (SD) of refractions and parameters measured with IOLMaster such as axial length (AL), mean keratometry (KM), anterior chamber depth (ACD) before refractive surgery and at 6 months follow up

From: Improving accuracy of corneal power measurement with partial coherence interferometry after corneal refractive surgery using a multivariate polynomial approach

  Range Mean ± SD
Age (years) From 18 to 57 31.53 ± 8.47
Before myopic PRK
 Refraction (D) From − 9.5 to − 1 − 4.55 ± 2.2
 Axial length (mm) From 21.86 to 30.42 25.46 ± 1.22
 Mean keratometry (D) From 37.73 to 47.85 43.88 ± 1.48
 Anterior chamber depth (mm) From 2.09 to 4.4 3.66 ± 0.31
6 months after myopic PRK
 Refraction (D) From − 2 to + 2 + 0.41 ± 0.5
 Axial length (mm) From 21.87 to 30.31 25.35 ± 1.19
 Mean keratometry (D) From 31.69 to 45.43 39.42 ± 2.34
 Anterior chamber depth (mm) From 2.18 to 4.29 3.56 ± 0.3